Known as “Coolief,” the procedure can provide several months of relief from chronic arthritis pain for patients for whom surgery is not an option. It also decreases the need for a daily regimen of prescription medication and other over-the-counter pain-relieving drugs.
The innovative Coolief RF technology combines cold and heat energy to extend the pain-free period much longer.
During the Coolief procedure, minimallyinvasive needles and water-cooled electrodes inserted into the knee target three nerves responsible for sending pain signals to the brain. RF energy passes through the needle and ablates (heats) nerve tissue, greatly reducing those nerves' ability to send pain signals to the brain for extended periods of time.
Source: https://www.rush.edu/news/press-releases/tuning-out-arthritis-pain-radio-energy